Food heating method and apparatus using containing means, e.g., a
pre-formed container 1, such as a relatively flat pouch or envelope
comprising at least one panel made of flexible multilayer film with
layers 3 and 5 of Perfluoralkoxy (PFA) and Fluorinated Ethylene Propylene
(FEP), respectively, on a core layer 3 of Polytetrafluorethylene (PTFE).
A sandwich or other foodstuff 23, baked beans or french fries, for
example, "chips" or "frites", can be heated by being inserted in the
containing means which is then heated by a radiant heat applying device,
such as an electric bread toaster. The containing means can be wholly of
the multilayer film. The containing means can be in the form of an open
bag, which is reusable, or it can be a closed bag sold with the food
therein.